/**
 * 用户列表
 */
<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区 -->
    <el-card>
      <!-- 搜索框 -->
      <el-row :gutter="25">
        <el-col :span="7">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表  -->
      <el-table :data="userList" stripe border>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" width="100px">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="200px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEidt(scope.row.id)"></el-button>
            <!-- 删除按钮 -->
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="deleteUser(scope.row.id)"></el-button>
            <!-- 分配角色 -->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>

          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 20, 50]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>
      <!-- 添加用户的对话框 -->
      <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="30%" @close="dialogClose">
        <!-- 对话框主体区 -->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username" clearable></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password" clearable></el-input>
          </el-form-item>
          <el-form-item label="电话" prop="mobile">
            <el-input v-model="addForm.mobile" clearable></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email" clearable></el-input>
          </el-form-item>
        </el-form>
        <!-- 对话框底部区 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>
      <!-- 修改用户对话框 -->
      <el-dialog
        title="修改用户"
        :visible.sync="editDialogVisible"
        width="30%" @close="editDialogClose">
        <el-form
          :model="editForm"
          ref="editFormRef"
          :rules="editFormRules"
          label-width="70px">
          <el-form-item label="用户名">
            <el-input v-model="editForm.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
      </el-dialog>
      <!-- 分配角色对话框 -->
      <el-dialog
        title="分配角色"
        :visible.sync="setRoleDialogVisible"
        width="30%" @close="setRoleClose">
        <div>
          <p>当前用户：{{userInfo.username}}</p>
          <p>当前角色：{{userInfo.role_name}}</p>
          <p>
            分配角色：
            <el-select
              v-model="selectRoleId"
              filterable
              allow-create
              default-first-option
              placeholder="请选择角色"
            >
              <el-option
                v-for="item in rolesLsit"
                :key="item.id"
                :label="item.roleName"
                :value="item.id"
              ></el-option>
            </el-select>
          </p>
        </div>
        <span slot="footer" class="dialog-footer">
          <el-button @click="setRoleDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
      </el-dialog>
    </el-card>
  </div>
</template>

<script>
export default {
  created () {
    // 获取用户列表
    this.getUserList()
  },
  data () {
    // 校验邮箱
    var checkEmail = (rule, value, back) => {
      const regEmail = /^\w+@\w+(\.\w+)+$/
      if (value === '' || regEmail.test(value)) {
        // 未输入邮箱或合法邮箱
        return back()
      }
      back(new Error('请输入合法邮箱'))
    }
    var checkMobile = (rule, value, back) => {
      const regMobile = /^1[34578]\d{9}$/
      if (value === '' || regMobile.test(value)) {
        // 未输入手机号或手机号合法
        return back()
      }
      // 返回一个错误提示
      back(new Error('请输入合法的手机号码'))
    }
    return {
      // 获取用户列表的请求参数
      queryInfo: {
        query: '',
        // 当前页数
        pagenum: 1,
        pagesize: 5
      },
      userList: [],
      total: 0,
      // 默认隐藏对话框
      addDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        mobile: '',
        email: ''
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 表单验证规则
      addFormRules: {
        username: [
          {required: true, message: '请输入用户名', trigger: 'blur'},
          {min: 3, max: 10, message: '请输入3-10位用户名', trigger: 'blur'}
        ],
        password: [
          {required: true, message: '请输入密码', trigger: 'blur'},
          {min: 6, max: 15, message: '请输入6-15位密码', trigger: 'blur'}
        ],
        mobile: [
          {validator: checkMobile, trigger: 'blur'}
        ],
        email: [
          {validator: checkEmail, trigger: 'blur'}
        ]
      },
      // 根据id查询到的用户信息数据
      editForm: {},
      // 修改表单的验证规则
      editFormRules: {
        mobile: [
          {validator: checkMobile, trigger: 'blur'}
        ],
        email: [
          {validator: checkEmail, trigger: 'blur'}
        ]
      },
      // 角色分配对话框的打开和关闭属性
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 所有角色数据列表
      rolesLsit: [],
      // 已选中的角色Id值
      selectRoleId: ''
    }
  },
  methods: {
    async getUserList () {
      const {data: res} = await this.$http.get('/users', {params: this.queryInfo})
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg)
      }
      this.userList = res.data.users
      this.total = res.data.total
    },
    // 监听分页数值的改变
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码的改变
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听用户列表的状态
    async userStateChanged (userInfo) {
      const {data: res} = await this.$http.put(`/users/${userInfo.id}/state/${userInfo.mg_state}`)
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error(res.meta.msg)
      }
      this.$message.success(res.meta.msg)
    },
    // 监听对话框的关闭，清空对话框的所有提示
    dialogClose () {
      this.$refs.addFormRef.resetFields()
    },
    // 点击确定按钮，添加新用户
    addUser () {
      // 预校验表单
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        // 发起添加用户的请求
        const {data: res} = await this.$http.post('/users', this.addForm)
        if (res.meta.status !== 201) {
          return this.$message.error(res.meta.msg)
        }
        this.$message.success(res.meta.msg)
        // 关闭对话框
        this.addDialogVisible = false
        // 刷新用户列表
        this.getUserList()
      })
    },
    // 打开修改对话框
    async showEidt (id) {
      const {data: res} = await this.$http.get('/users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg)
      }
      this.editForm = res.data
      this.editDialogVisible = true
      // 修改用户信息数据
    },
    // 监听修改用户数据对话框的关闭事件，清空提示
    editDialogClose () {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息
    editUserInfo () {
      // 预校验表单
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        // 发起修改用户信息请求
        const {data: res} = await this.$http.put('/users/' + this.editForm.id, this.editForm)
        if (res.meta.status !== 200) {
          return this.$message.error(res.meta.msg)
        }
        this.$message.success(res.meta.msg)
        // 关闭对话框
        this.editDialogVisible = false
        // 刷新用户列表
        this.getUserList()
      })
    },
    // 删除用户信息
    async deleteUser (id) {
      // 弹框
      const confirmRes = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmRes !== 'confirm') {
        // 取消删除
        return this.$message.info('已取消删除')
      }
      // 确认删除
      const {data: res} = await this.$http.delete('/users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg)
      }
      this.$message.success(res.meta.msg)
      // 刷新用户列表
      this.getUserList()
    },
    // 打开分配角色对话框
    async setRole (userInfo) {
      // 获取当前用户角色信息
      this.userInfo = userInfo
      // 获取角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败！')
      }
      this.rolesLsit = res.data
      this.setRoleDialogVisible = true
    },
    // 分配角色
    async saveRoleInfo () {
      if (!this.selectRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectRoleId })
      if (res.meta.status !== 200) {
        return this.$message.error('更新用户角色失败！')
      }
      this.$message.success('更新角色成功！')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    // 分配角色对话框关闭事件
    setRoleClose () {
      this.selectRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang="less" scoped="scoped">

</style>
